Does the CMMG Resolute(R) MK4 5.56 NATO Assembled work with the LMT Defense Semi Auto 5.56 NATO?

Resolute(R) Mk4 5.56 Nato Assembled Upper Receiver W/P&W Brake - Resolute Mk4 5.56nato Assembl Upper 14.5''''bbl W/P&W Brake Blk

Upper Receiver

CMMG Resolute(R) MK4 5.56 NATO Assembled W/P&W Brake

from $432.70

Lmt Defense Semi Auto 5.56 Nato Complete Bolt Carrier Group

Bolt Carrier Group

LMT Defense Semi Auto 5.56 NATO

from $242.10

CMMG upper and Lewis Machine & Tool bolt carrier group compatibility

Yes, they fit

The CMMG Resolute(R) MK4 5.56 NATO Assembled W/P&W works with the LMT Defense Semi Auto 5.56 NATO. Our compatibility rules found no conflict between them.

This exact setup is in a real GunPartPicker build.

Counted from real GunPartPicker builds: parts lists people put together while planning to buy.

Checked by the same rules the AR builder runs on every part you add: caliber, frame size, receiver pattern, thread pitch and gas length.

Fit is judged from the specs retailers list, which can be missing or wrong. Confirm with the manufacturer before you buy, and have a qualified gunsmith check any build before you fire it.

How often builders pair the CMMG upper and Lewis Machine & Tool bolt carrier group

Backed by thousands of qualified builds that have both an upper and a bolt carrier group.

Bolt Carrier Groups builders put on the CMMG Resolute(R) MK4 5.56 NATO Assembled

Share of builds with the CMMG Resolute(R) MK4 5.56 NATO Assembled and any bolt carrier group

Upper Receivers builders put under the LMT Defense Semi Auto 5.56 NATO

Share of builds with the LMT Defense Semi Auto 5.56 NATO and any upper

  • CMMG Resolute(R) MK4 5.56 NATO Assembled

    Of upper picks
    0%
    Median paid
    n/a

  • LMT Defense Semi Auto 5.56 NATO

    Of bolt carrier group picks
    0.3%
    Median paid
    $224
How we count ⌄

These shares come from GunPartPicker's build data: real parts lists people put together while planning a purchase, not sales or surveys. A build counts a part only when it is the final pick for its slot, so parts that were swapped out never count. Fit never comes from these numbers; it comes from our compatibility rules alone.

Frequently built with the CMMG upper and Lewis Machine & Tool bolt carrier group

The part builders pick most often in each slot alongside these two, checked against both. Parts that conflict are left out.

Charging Handle

Lower Receiver

Trigger

Optic

Handguard

Stock & Brace

Pistol Grip

CMMG Resolute(R) MK4 5.56 NATO vs LMT Defense Semi Auto 5.56: specs and prices

CMMG Resolute(R) MK4 5.56LMT Defense Semi Auto 5.56
Best price$432.70 at BattleHawk Armory$249.75 at Brownells
Stores0 of 2 in stock2 of 4 in stock
AssemblyCompleten/a
PlatformAR-15n/a
Caliber5.56 NATOn/a
Length14.5n/a
Cartridgen/a5.56 NATO
Stylen/aAR-15 Bolt Carrier
Weightn/a0.698

Both for $682.45 at today's best prices.

Today's best prices and 90 day price history

Every store we track for each part, cheapest in stock first. Prices are checked through the day.

CMMG Resolute(R) MK4 5.56 NATO Assembled W/P&W

LMT Defense Semi Auto 5.56 NATO

Price history, last 90 days

  • CMMG Resolute(R) MK4 5.56 NATO Assembled: lowest $432.70 on Jul 5, highest $524.99 on Jul 6 over the last 90 days.
  • LMT Defense Semi Auto 5.56 NATO: lowest $224.10 on Jul 6, highest $249.75 on Jul 15 over the last 90 days.

Bolt Carrier Groups frequently paired with the CMMG Resolute(R) MK4 5.56 NATO Assembled

Most picked next to it in real builds. Only parts our rules say fit the CMMG Resolute(R) MK4 5.56 NATO Assembled are listed.

Upper Receivers frequently paired with the LMT Defense Semi Auto 5.56 NATO

Most picked next to it in real builds. Only parts our rules say fit the LMT Defense Semi Auto 5.56 NATO are listed.